Minimize replacement of characters to its nearest alphabet to make a string palindromic | C # program for the above approach ; Function to find the minimum number of operations required to convert th given string into palindrome ; Iterate till half of the string ; Find the absolute difference between the characters ; Adding the minimum difference of the two result ; Return the result ; Driver code ; Given string ; Function call
using System ; class GFG { public static int minOperations ( String s ) { int len = s . Length ; int result = 0 ; for ( int i = 0 ; i < len / 2 ; i ++ ) { int D1 = Math . Max ( s [ i ] , s [ len - 1 - i ] ) - Math . Min ( s [ i ] , s [ len - 1 - i ] ) ; int D2 = 26 - D1 ; result += Math . Min ( D1 , D2 ) ; } return result ; } public static void Main ( String [ ] args ) { String s = " abccdb " ; Console . WriteLine ( minOperations ( s ) ) ; } }